Effect of Rice Sowing Date on Occurrence of Small Brown Planthopper and Epidemics of Planthopper-Transmitted Rice Stripe Viral Disease

JinLiang, Zhu; Zhu, Zhiliang; Zhou, Yin; Lu, Qiang; Sun, Xiang-liang; Tao, Xian-guo; Chen, Yue; Wang, Huadi; Jiaan, Cheng

doi:10.1016/s1671-2927(08)60217-5

Cited by 13 publications

(10 citation statements)

References 7 publications

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“…However, our analysis shows that the RSV disease severity does not correlate with viruliferous SBPH density in either sprayed or unsprayed fields. Rather, it is positively correlated with viruliferous rate, consistent with previous studies in other rice viral diseases 23 36 . This result suggests that, the proportion, rather than the absolute size of the SBPH population infected by the virus, plays the decisive role in RSV epidemics.…”

Section: Discussionsupporting

confidence: 91%

“…Hibino (1996) argued that the main agronomic factors contributing to viral disease epidemics were the widespread use of susceptible varieties, the large–scale cultivation of winter wheat (an alternative host), the sowing and planting time of rice, and the time gap between early and late sowing in rice. Most rice virologists share his view 18 20 21 22 23 24 . With regard to rice stripe disease, viral source, the density of small brown planthopper (SBPH), rice resistance and temperature were generally considered as the main factors driving the occurrence of the vector and through these viral epidemics 25 .…”

mentioning

confidence: 99%

“…Kishimoto and Yamada (1986) 26 proposed the use of SBPH density and viruliferous rate in the overwintering generation to predict RSV epidemics and empirically divided epidemics of RSV into normal–, epidemic– and transitional–level. Viruliferous SBPH density, rice resistance, cultivation time, transplanting time, sowing time, climatic factors 23 24 27 28 29 30 31 32 alone or in combination of 2–3 of these factors have also been proposed as alternative predictors of RSV epidemics by other researchers. However, most previous models were built upon data generated from sprayed fields where disease occurrence and epidemics were under intensive human intervention and hence where some factors, for example, total SBPH density, rice variety, and other cultural practices can be manipulated, but others such as the viruliferous rate of the vector, or temperature cannot.…”

mentioning

confidence: 99%

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Viruliferous rate of small brown planthopper is a good indicator of rice stripe disease epidemics

Zhan

Cheng

et al. 2016

Sci Rep

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Rice stripe virus (RSV), its vector insect (small brown planthopper, SBPH) and climatic conditions in Jiangsu, China were monitored between 2002 and 2012 to determine key biotic and abiotic factors driving epidemics of the disease. Average disease severity, disease incidence and viruliferous rate of SBPH peaked in 2004 and then gradually decreased. Disease severity of RSV was positively correlated with viruliferous rate of the vector but not with the population density of the insect, suggesting that the proportion of vectors infected by the virus rather than the absolute number of vectors plays an important role in RSV epidemics and could be used for disease forecasting. The finding of a positive correlation of disease severity and viruliferous rate among years suggests that local infection is likely the main source of primary inoculum of RSV. Of the two main climatic factors, temperature plays a more important role than rainfall in RSV epidemics.

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Section: Discussionsupporting

confidence: 91%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Viruliferous rate of small brown planthopper is a good indicator of rice stripe disease epidemics

Zhan

Cheng

et al. 2016

Sci Rep

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“…In China, this pest has been found in all rice-growing areas and has been a serious problem since 1999. In recent years, the outbreak frequency of this insect increased greatly 3 . It is believed that insecticide resistance may be the main contributor to such a population surge, as the control of this species mainly depends on applications of chemical insecticides 4 .…”

Section: Introductionmentioning

confidence: 99%

Resistance monitoring and cross-resistance role of CYP6CW1 between buprofezin and pymetrozine in field populations of Laodelphax striatellus (Fallén)

Zhang

Han

Liu

et al. 2017

Sci Rep

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Monitoring resistance and investigating insecticide resistance mechanisms are necessary for controlling the small brown planthopper, Laodelphax striatellus. The susceptibility to four common insecticides of L. striatellus collected from Jiangsu, Anhui, Zhejiang and Jilin provinces of China in 2015 was monitored. The results showed that all field populations remained susceptible to chlorpyrifos and thiamethoxam with resistance ratios (RRs) of 2.3- to 9.5 and 1.6- to 3.3, respectively, while the insects had developed moderate pymetrozine resistance with RRs of 18.7 to 34.5. Resistance against buprofezin had developed to an alarmingly high level in three southeastern provinces of China with RRs of 108.8 to 156.1, but in Jilin it had an RR of only 26.6. Moreover, in line with both the buprofezin and pymetrozine resistance levels, we found LsCYP6CW1 to be over-expressed in all field L. striatellus populations, which indicated that it might be important for cross-resistance between buprofezin and pymetrozine. RNA interference (RNAi) ingestion resulted in the effective suppression of LsCYP6CW1 expression, and significantly increased susceptibility to both buprofezin and pymetrozine compared with the control, which further confirmed that overexpression of LsCYP6CW1 was involved in the cross-resistance to buprofezin and pymetrozine in field L. Striatellus populations.

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“…The average growth rates of L. striatellus in recent years were more than four to eight times higher than those in the 20th century (Cheng, 2009). The occurrence and outbreak of L. striatellus was strongly associated with climate, cropping system and pesticide resistance (Liu et al, 2007;Cheng, 2009;Zhu et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

High temperature determines the ups and downs of small brown planthopper Laodelphax striatellus population

Liu

Zhang

2012

Insect Science

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Small brown planthopper, Laodelphax striatellus (Fallén) numbers usually drop sharply in the summer and revive quickly in the autumn. However, it is unclear whether and how the high temperature plays a role in this process. The effects of durations of heat exposure (33°C) on life-history traits were examined here. Exposure of adults for 1 day during the oviposition stage led to a very low survival of nymphs. The average longevity of L. striatellus exposed for 1-31 days from oviposition was significantly longer than that of the control (27°C). Short-term (1-5 days) heat exposure of the third instar nymphs did not significantly influence eclosion, but exposure of the fourth instar nymphs significantly increased eclosion. Lifespan from egg to adult was significantly lengthened when the third instar nymphs were exposed to heat for 2-15 days, or the fourth instar were exposed for 10 days. The preoviposition period was prolonged by heat exposure of the third or fourth instar nymphs. Short-term heat exposure of less than 3 days of the third or fourth instar nymphs did not restrict fecundity, but when the exposure duration exceeded 5 days the total eggs per female and hatchability decreased. Exposure to high temperature increased the brachypter rate of adults. In summary, low survival and slowing development under heat exposure resulted in population decline in the summer, and the relatively high fecundity and brachypter rate led to quick revival in autumn. Temperature in the summer determines the rise and fall in numbers of L. striatellus.

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Effect of Rice Sowing Date on Occurrence of Small Brown Planthopper and Epidemics of Planthopper-Transmitted Rice Stripe Viral Disease

Cited by 13 publications

References 7 publications

Viruliferous rate of small brown planthopper is a good indicator of rice stripe disease epidemics

Viruliferous rate of small brown planthopper is a good indicator of rice stripe disease epidemics

Resistance monitoring and cross-resistance role of CYP6CW1 between buprofezin and pymetrozine in field populations of Laodelphax striatellus (Fallén)

High temperature determines the ups and downs of small brown planthopper Laodelphax striatellus population

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